<template>
  <div class="col-md-4">
    <form class="form-horizontal" @submit.prevent="addComment">
      <div class="form-group">
        <label>用户名</label>
        <input
          type="text"
          class="form-control"
          placeholder="用户名"
          v-model="username"
        />
      </div>
      <div class="form-group">
        <label>评论内容</label>
        <textarea
          class="form-control"
          rows="6"
          placeholder="评论内容"
          v-model="content"
        ></textarea>
      </div>
      <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
          <button type="submit" class="btn btn-default pull-right">提交</button>
        </div>
      </div>
    </form>
  </div>
</template>
<script>
export default {
  data() {
    return {
      username: '',
      content: '',
    }
  },
  methods: {
    addComment() {
      const { username, content } = this
      if (!username.trim() || !content.trim()) {
        alert('请输入正确的用户名和密码~~')
        return
      }
      this.$globalEventBind.$emit('addComment', username, content)
      this.username = ''
      this.content = ''
    },
  },
}
</script>

<style scoped></style>
